Thank you, planthelper, for your compliments! As a non-carpenter and basically non-handyperson I will take all of the compliments I can get!
As for appreciating my plants, well, my two daughters are grown now, and so my plants are my new children. And Sally D fundamentally shifted my views about life, death, the hereafter, etc. so I value the preservation of entheogenic species. I guess one could say that now, finally, "I get it".
I hope you are correct and that the box will contribute more than a barrier to prevent our dogs from investigating the enticing scents of fertilizer.
Actually, when I built the box I intended to transplant the Sally D plants into it. But when I ventured into a hydroponics store in search of large bags of Perlite, the knowledgeable employee lectured me about why I should leave my plants in individual pots as doing so would enable me to micro-manage each plant's ecosystem, leach fertilizer salts from the soil, prevent a pandemic, promote world peace , and etc..
I'm still trepidating over that bit of wisdom! But I drew the line at the B. caapi as I feel a vine of that sort should be in "the ground" and not in some dinky little pot! I know the B. caapi area isn't exactly spacious for them but, since there is no bottom to it, they are free to burrow into the ground proper if they should choose to do so.
I am eager for this adventure to play out and I want to be a good caretaker for them. So any advice would be appreciated. I understand I should fertlize with such things as bat guano, worm castings, fish emulsions and seaweed/kelp extracts but I'm not too sure which, if any of those, are better than others.
I believe I must soon come to terms with the concept of pruning . . . .